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Income Taxes (Changes In The Company Valuation Allowance) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Income Taxes [Abstract]
Beginning Balance	$ 21,579	$ 23,788	$ 25,621	$ 28,862
Increases in current period tax positions	1,525	907	2,778
Decreases in current period tax positions	(3,734)	(2,740)	(5,698)
Decreases in prior period tax positions			(321)
Ending Balance	$ 21,579	$ 23,788	$ 25,621	$ 28,862

The amount of the valuation allowance recorded as of the balance sheet date pertaining to the specified deferred tax asset for which an assessment was made that it is more likely than not that all or a portion of such deferred tax asset will not be realized through related deductions on future tax returns.

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